^5 +1 what shadow said.
The Antec 1200 and the Coolermaster HAF 932 cases have excellent ventilation, airflow, and cooling. Both cases are among the best for cooling. I have a HAF 932. It is a huge beast. The is plenty of room for larger video cards. Cable management is excellent.
The door on the front bezel of the Lexa S restricts airflow. The interior of the case is pretty much a standard configuration. Cable management is difficult. Larger video cards may not fit.